- Add WPCFTO-inspired design system CSS (colors, spacing, typography)
- Add reusable React components matching WPCFTO visual language
- Implement client-side navigation with hash-based routing
- Add NavigationMenu component for on-page navigation (no SSR)
- Update WordPress submenu highlighting based on current React page
- Add Refresh button to DataTable toolbar
- Fix icon imports in VariationPricingTable
- Remove page headers from all table pages (consistent UX)
- Convert Orders page to use DataTable for consistency
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>